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Finding the Fourth Proportional to 125,617.62, 173,361.96 and 71,919.48

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Solution

The fourth proportional to 125,617.62, 173,361.96 and 71,919.48 is: 99,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,617.62 : 173,361.96 = 71,919.48 : x
  2. Step 2: Convert to fraction form
    125,617.62/173,361.96 = 71,919.48/x
  3. Step 3: Cross multiply
    125,617.62x = 173,361.96 × 71,919.48
  4. Step 4: Simplify right side
    125,617.62x = 12,468,102,014.98
  5. Step 5: Solve for x
    x = 12,468,102,014.98/125,617.62
  6. Step 6: Final answer
    x = 99,254.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.